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20760673 = 191092667
BaseRepresentation
bin100111100110…
…0100001100001
31110001202021211
41033030201201
520303320143
62020550121
7341314513
oct117144141
943052254
1020760673
111079a88a
126b52341
1343bb72b
142a85bb3
151c5149d
hex13cc861

20760673 has 4 divisors (see below), whose sum is σ = 21853360. Its totient is φ = 19667988.

The previous prime is 20760671. The next prime is 20760703. The reversal of 20760673 is 37606702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20760673 - 21 = 20760671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20760671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546315 + ... + 546352.

It is an arithmetic number, because the mean of its divisors is an integer number (5463340).

Almost surely, 220760673 is an apocalyptic number.

It is an amenable number.

20760673 is a deficient number, since it is larger than the sum of its proper divisors (1092687).

20760673 is a wasteful number, since it uses less digits than its factorization.

20760673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092686.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 20760673 is about 4556.3881529123. The cubic root of 20760673 is about 274.8403392773.

The spelling of 20760673 in words is "twenty million, seven hundred sixty thousand, six hundred seventy-three".

Divisors: 1 19 1092667 20760673